ProFootballWeekly's exclusive draft value chart
Nice link to PFW's value chart. I can tell you from past experience that PFW has s tendancy to fall in love with some players and will rank them too high and will undervalue others.
For instance they have Tim Tebow over Colt McCoy which might
happen...but I would say is reach. Tebow comes with too many questions and everyone knows that he is in the "process" of tweaking his technique. I think he is overvalued by at least one round. They also have RB Joique Bell as a 7th rounder which I think is undervalued by two...maybe three...rounds.